Broad band and telephones?

What can i do to stop the wizzing sound from my phonesi think it is broad band that is affecting itthis has only started since i bought newhouse phones i would be gratefull for any advice or ideas
Answer
Get yourself the panasonic dect 6.0..with build-in /router/firewall.and it will stop..!http://www.101phones.com/browse/18b145148f9d8fa63849b02bfc08698e/dect_6.0_phones/?link=leftmenu * new dect 6.0 technology o interference free communication o increased clarity / enhanced security o wider range / network friendly * 1.9ghz cordless phone o frequency dedicated for cordless phones by the fcc o 30% battery life increase over 5.8ghz